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    <meta charset="UTF-8">
    <title>Title</title>
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<h1>四则运算-加减乘除，求余</h1>
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<script type="text/javascript">

    var number1 = 10;
    var number2 = 0;

    var rs;

    /*
    * 10
    * --- = 0.333333
    * 3
    *
    * 10
    * -- = ∞(Infinity无穷大)
    * 0.000000000000000000000000000000000000000000000000000003
    * */

    // Infinity 高中  极限 ∞ +∞ -∞
    rs = number1 / number2;



    alert(rs);


</script>

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